Application Research of Sonar Detection Method in Melting Exploration at the Bottom of Piles

Karst landforms are widely distributed in China, and most common Yunnan, Guizhou Guangxi. If the development of karst caves at bottom piles cannot be accurately ascertained before construction bridge pile foundations, accidents such as hole collapse, slurry leakage, drill sticking will easily occur. In this paper, principle method sonar detection for detecting was introduced, data cave situation during process combination with case Yunnan Zhenguo Highway Project analyzed, which verifies practicability reliability reliability.